<template>
  <div class="upload-container">
    <el-button
      :style="{ background: color, borderColor: color }"
      icon="el-icon-upload"
      size="mini"
      type="primary"
      @click="dialogVisible = true"
    >
      上传
    </el-button>
    <el-dialog :visible.sync="dialogVisible" :modal="false">
      <el-upload
        :multiple="true"
        :file-list="fileList"
        :show-file-list="true"
        :on-remove="handleRemove"
        :on-success="handleSuccess"
        :before-upload="beforeUpload"
        class="editor-slide-upload"
        :action="uploadUrl"
        list-type="picture-card"
      >
        <el-button size="small" type="primary"> 选择文件</el-button>
      </el-upload>
      <el-button @click="dialogVisible = false"> 取消</el-button>
      <el-button type="primary" @click="handleSubmit"> 确认</el-button>
    </el-dialog>
  </div>
</template>

<script>
// import { getToken } from 'api/qiniu'
import * as imageConversion from 'image-conversion'

export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      // 上传文件类型限制
      fileType: 'msword|doc|docx|xls|xlsx|ppt|pptx|pdf|png|jpg|jpeg|gif|bmp',
      uploadUrl:
        process.env.VUE_APP_BASE_API + '/api/admin/upload/tinymce/image',
      fileList: [],
      viewUrl: process.env.VUE_APP_BASE_API + '/api/portal/viewImage/'
    }
  },
  mounted() {},
  methods: {
    checkAllSuccess() {
      return Object.keys(this.listObj).every(
        (item) => this.listObj[item].hasSuccess
      )
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map((v) => this.listObj[v])
      if (!this.checkAllSuccess()) {
        // this.$message('Please wait for all images to be uploaded successfully. If there is a network problem, please refresh the page and upload again!')
        this.$message(
          '请等待所有文件上传成功。如果因为网络问题，请关闭本页面重试！'
        )
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleSuccess(response, file) {
      const { uid } = file
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          this.listObj[objKeyArr[i]].url = this.viewUrl + response.data.id
          this.listObj[objKeyArr[i]].hasSuccess = true
          return
        }
      }
    },
    handleRemove(file) {
      const { uid } = file
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    beforeUpload(file) {
      const _self = this
      const reg = new RegExp(this.fileType, 'i')
      const validate = reg.test(file.type)
      if (!validate) {
        this.$message.error('仅能上传格式是 ' + this.fileType + '的文件!')
        return false
      }
      const isLt10M = file.size / 1024 / 1024 < 10
      if (!isLt10M) {
        this.$message.error('上传文件大小不能超过10MB!')
        return false
      }
      const _URL = window.URL || window.webkitURL
      const fileName = file.uid
      this.listObj[fileName] = {}
      const p = new Promise((resolve) => {
        // 压缩到200KB,这里的200就是要压缩的大小,可自定义
        imageConversion.compressAccurately(file, 200).then((res) => {
          resolve(res)
        })
      })
      const img = new Image()
      img.src = _URL.createObjectURL(file)
      img.onload = function() {
        _self.listObj[fileName] = {
          hasSuccess: false,
          uid: file.uid,
          width: this.width,
          height: this.height
        }
      }
      return p
    }
  }
}
</script>

<style lang="scss" scoped>
.editor-slide-upload {
  margin-bottom: 20px;

  ::v-deep .el-upload--picture-card {
    width: 100%;
  }
}
</style>
